Combined water heating and measuring apparatus.



G. H. GIBSON.

COMBINED WATER HEATING AND MEASURING APPARATU&

APPLICATION-IILED JAN.12,1912.

1 #096,621 1 Patented Ma,y12,191L

INVENTOR WITNESSES 2 7 w Y W4 l ATTORNEY UNITED srATEs PATE T orrion.

GEORGE H. GIBSON, or Mo roLAIn, .rE 'sEY; AssIe oa T0 JosEieH s. LovERiNo.

WHARTON, WILLIAM s. H LrbWELL, AND JOHN 0. Jonas, AL or PHILADEL- PHIA, PENNSYLVANIA, DOING B Usmnss As r m/I or RRISON SAFETY BOILER WORKS, or PHILADELPHIA, PEN SYLVANIA.

COMBINED WATER HEAaING ND MEASURING APPARATUS.

Specification of Letters Patent.

P: tented May 12, 1914.

Application filed January 12, 1912. Serial Not 6'iO,862.

To all whom it only concern Be itknown that I, Gnonca: H. GIBSON, a citizen of the United Statesof America, residing in Montclair, county of Essex; in

the State of New Jersey, have invented a heater a so-called open feed water heater.

having storage capacity for heated water and the usual water supply regulating and overflow to waste .provisions, and'employ in conjunction therewith'a weir chamber and cooperatingfiow measuring adjuncts, passing the heated water from the" heater lhrough the weir chamber to the boiler feed pump or'other apparatus for utilizing the heated water. I employ means also for cutting on the supply of water to the=weir chamber on a predetermined accumulation of water on the discharge side of the \veir. hen the normal service discharge from the heater is thus wholly or partially inter- 1 :pted the water storage capacity of the heater and the water supply regulating and waste provisions, of the heater are brought into full play v The variors features of novelty which characterize my invention are pointed out with particularity in the claims annexed to and forming a part of this specification. For a better understanding of the invention, however, and the advantages possessed by it, reference should be had to the accompanying drawings and descriptive matter in which I have illustrated and described one form in which my invention may be embodied. I

' Of the drawings, Figure l is an elevation, partly broken away and in sect-ion of a combined water heating and measuring apparatus. -Fig. 2 is'asectional elevation on the line 2-2 of Fig. 1. Fig. 3 is a el'evation of the heater shown in Fig. 1. In the pairticular embodiment of my invention shown by the drawings, A, represent's a so-called open feed water heater of common type in which water is heated by the direct action of steam injected into the' heater and thereby condensed in whole or.

-separator C is interposed between the end of the heater.

A. represents the port through which steam passes from the oil sepaator into the heating chamber. .ASmSllOlVll, this port is controlled by a valve C t Cigrepresents a pipe for conveying liquid pipe B and the upper end of the collecting" in the bottom of the separator C intoa float chamberD. ne latter. is open to the interior of the heater chamber through the port A? and surplus water accmnulatmg in the heater may pass to waste through port A when the water level in the heater rises to the top of the shell A located within the heater. The port A is shown as controlled by thevalve D operated by the handle D which serves also to operate the valve C through the link con neetion D The valves C and D' are normally 'open but are provided to out 01f all conmiunication between the steam pipe and the heater when it is desirable to cut the latter out of service. D represents the waste pipe leading; from the receptacle D and controlled by the valve D The valve D als operated by a float E located Within the receptacle Dand carried by an arm secured to a rock shaft E journaled in the chambered head E secured to the receptacle D. Suitable operaitingconnections are provicled :between' the shaft E and the stern of the valv ewD The member E, float E and meansfor connecting them togetheigare sectionalsimilar to the member EB, float EB and means connecting them shown in Fig. 2 and hereinafter referred to.

' lating valve C.

- A represents avent pipe connecting the top of the heater tank to the pipe C above the valve C Advantageously a thermostatic valve A is provided in the vent connection A, this valve being adapted to open of steam.

to permit. the. escape of air from the heating 1 chamber, and to close to prevent the passage '1 A represents a hand valve also located 1n the vent pipe A, this valve, of course, being normally open when the thermostatic valve A is employed. The vapor pressure maintained in-the heater. tank varies with the conditions of use, and in particular with the temperature which it is desired'to give the water issuing from the heater and the pressure of the steam available for heating the water. Under ordinary conditions of use the pressure inthe heater tankis ordinarily a pound or two above the pressure of the as into the tr'ough'l-I located in the upper end of the heater chamber. .From the trough H.

head EA secured to the heater tank.

I atmosphere, though it is not uncommon to have this pressure vary from a pound or two below atmospheric pressure up to ten or even twenty pounds above the atmospheric pressure. I

The cold water to be heated is supplied to the heater by the pipe G which discharges the cold water overflows on to inclinedbaflies or spreader trays I over which the water flow-s in film-like and broken streams thus facilitating the rapid absorption by the cold water of heat from the steam admitted through pipe B. The pipe G is controlledby a valve G operated by a float EA within the heater tank and carried by an arm secured to a rock shaft EA journaled in tiie T is rock shaft EA is suitably connected to the movable member of the valve G, the parts being so arranged that the valve G will be closed when the water accumulating in the bottom of the heating chamber. rises to a .lovel somewhat below the top of the member A while at lower heights of water level the valve G will be open.

GA represents a supply pipe which maybe employed for discharging into the heater,

waterof condensation from steam traps, ra-

idiators and the like.

- of the member A a $5 A represents a. perforated support for A represents-a shell forming a chamber into which the pipe GA opens and which is the filter bed F located in the lower end of the heating-tank. As shown, the plate A is'located some distance above the bottom 'wall of the heater tank, thus providing a .chamber A from which the heated and puritied water passes upward to the service dis charge pipe .J through the chamber A formed by the shell member A, this chamber being open at its bottom to the chainher A.

A represents an equalizing pipe which leads from th chamber A to a point in the heater chamber above the maximum heighi of water level occurring therein in normal operation.

The heater proper, shown by the drawings and described above, does not in itself possess any novel features, but is of a type well known and long in common use.

The discharge pipe J from the heater A leads to a closed weir chamber K,'opening to the latter on the supply side of the weir K located within the weir ch amber. As shown, the weir K is formed with a plurality of V-shaped notches or orifices K in-its upper edge, the apices of these orifices being all at the same level.

K represents a battle arranged in the weir chamber between the mouth of the pipe J and the weir K and advantageously perforated as shown in its lower portion. The purpose of the baffle K is to insure a quiet How of water to the weir proper and an avoidance of eddy currents in the water on the supply side of the weir. The flow of water from the heater tank into the weir chamber is controlled by a valve J located in the pipe J and operated by the float EB located within the weir chamber on the discharge side of the weir. The float EB is carried by an arm secured to 'a rock shaft EB journaled in the chambered head EB secured to the side of theweir chamber. The shaft EB has an arm E13 connected to the stem of the valve J" through link EB, the arrangement being such that on predetermined rise of water level on the discharge side of the weir, the corresponding elevation of the float EB will close the valve J while with a lower water level on the discharge ually actuated valve K and the pipe J may also be closed when desired by the manually actuated valve J K represents the service discharge pipe leadin from the outlet compartment of the weir chamber, and through which the heatedand measuredwater .is delivered for jthe' rate of flow over the weir is a function of the height of water level on the supply side of the weir. here the weir is-to 'med with a V-shaped orifice or orifices, sucli' as thedorifices 1' the flow is proportional to the five-halves power of the height of water level on the supply side of the weir above the letel of the weir notch apex o' apices,

e. if (it). represents this height, the quantit-yrate of flow, of liquid ovcrthe weir is given by the equation g ah where (a) is a constant. The llowot water over the weir may thusbe measured by lneasuring' the varying .QCCLlllll'llilljlO'll ol ater on the supply side of the weir.

The invention claimed herein is indepemh ent of the character of the particular means employed for determining the rate of flow o'ver the weir from the varying accumulation 01 water on the supply side ot the weir. The particular means for this purpose partially disclosed herein, is more fully disclosed and is claimed in myapplication Serial No. {M6280 filed Febri'iary 5th, 1913, as a division of this case. Other suitable forms of mechanism for i'neasuring the varying. accumulation of water on the supply side of alwcir and for indicating. recording and registering.thellow of liquid n ord nary quantity, 2". a. volume or weight unis or measurement a re..('lisclosecl and claimed in my pr or Patent 1,015,553 graiitcd Jannary 23rd, 1912, nndin m v co-pehding ap{ plication Serial No. 670.862), liled 'Illllllill'f 12, 1912. i p V Wi h.- the particular form of apparatus discloserlby the present application. meas ure thetlpw 0t w -lj Jr the weir he means of a bucket Q; suspended in the weir t'hanr her on the discharge side oi the wcirfwith l the bottom of the cavity in the buclcct located at the level otthe weir notch apiccs. The interior of the bucket Q is connected to the supply side of the weir below the level of the weir notch apices by a flexible piped? which may be formed of rubber hose. With this arrangement it is Qohvious that the bucket will be filled with water alall times to the level of the water on the supply side of the weir, and those skilled in the art will understand that the weight of the bucket and its contents will be a function of the rate oi. flow over the weir. Preferably I shape the interior surface of the bucket so that the weight of the water contained by it will bear a constant ratio to the rate 01f llow over the Weir as the height o f water level on the supply side of the Weir rises and falls. Those skilled in the art Will have no dilliculty in deteri'uining the shape to be given to the inner surface of the lll'lllflt Q in ordcr to obtain the desired proportional readings when the law governing the lluw over the particular weir with whi h the bi: -licl i-i to be used is determined. as it may be, both illcoreticallv and experimentall v, bv methods well known to those skilled in the art.

ln the apparatus disclosed lluid rn-e sure means are employed for measuring;- the varying wright of the water contained in the bucket (Q. the gage lv being cn'iployed to nurasure the fluid pressure required to balance the weight of the bucket (Q and itscontents, as is cx 'ilained in my said divisional z' pplicalion.

\r'ith the water healing and inoasurinp apparatus disclosed it will be apparent that the heater employed ma; be o'l any convenient type now in common use and may m-rform its usual functions, while the weir measuring"apparatus disclosed forms a satislactorv means for measuring the wat-f-r discharger l "l lUll'l the healer and utilized. The float l'lll in the weir chamber and the valve J controlled by it, prevents an accumulation of water on the outlet :-;ido ol the weir sullicient. lo interlin'e with the llow over the weir and thereby change the law oi llow over the weir. \l'hen the service (llSilldlfIO connecticn from the heater to the weir chamber is closcdlrv float Eli and valve .l the water storing: capacity and water supply regulating); and waste provisions oi lhc heater proper are brought into play serving; on the one hand to avoid an undesirable waste oi \vatcr on a temporarv interruption. for instance. in the operation of a boiler iced pump supplied from the weir chamber. and on the other hand to check the suppl ol'cold water to'lhe healer and to dispose of surplus water through the waste provision when the :u-cmnulalimi oil water in the heater has rraclu-al a prcilelermincd maximum. lrc'l'erablv the heating apparatus is so'adjustcd that a "onsidcrable amount of water passing lulo the healer through the return connection (lfi after the valve l is closed. may accumulate in (be rd( |;'i;1'0.. p;l(t between, the lev l at which the \alvc ll closes and the overflow level. which is the level ot"the top ol the member AF, before the discharge ol surplus water to waste commences. I

The vapor equalizing connection K between the heater and the weir chamber permits the heater to be operated at an desired internal pressure and temperature without interfering withv the operation of the measuring apparatus; and in case the pressure in the heater is above atmospheric pressure, the pipe K" prevents the loss of head and reduction in tempera'tnre of the water in the weir chamber which would result if the pressure inthe Weir chamber was below that in the heater, and while the pressure in the heater is below atmospheric pressure, the flow o't'u'ater out of the heater into the weir chamber is not thereby interfered with.

Vhile in accordance with the provisions of the statutes 1 have illustrated and described the best form of my invention now known tome, it will be apparent to those skilled in the art thatchanges may be made in the form of the apparatus disclosed Without departing from the spirit of my-invention and that undersome conditions certain features of my invention may be used with advantage without a corresponding use of other features.

Having now described my invention, what I claim as new and desire to secure by Letters Patent, is:

' 1. In a combined water heating and measuring apparatus the combination of an open heater comprising a heating chamber, steam and water supply connections thereto and a float within the heater controlling said water supply connect-ion, a closed weir chamher, a water supply connection to the weir chamber leading from the heating chamber, an equalizing conneetlon between the vapor spaces in the heater and weir chambers, a water discharge connection leading from the weir chamber, a weir within said chamber between the water supply and discharge connections thereto, means responsive to the accumulation of water in the dischargeside of the weir for closing the water supply connection to the weir chamber, and provisions for measuring the water flowing over the weir. i

2; In a combined water heating and meas uring apparatus the combination of an open heater comprising aheating chamber, steam and water supply connections thereto, a. floatwithin the heater controlling said water supply connection and provisions for passing to waste surplus water accumulating in'said heating chamber, a closed weir chamber, a water supply connection to the weir chamber leading from the heating chamber, an

equalizing connection between the vapor spaces in the heater and weir chambers, a

water discharge connection leading from the weir chamber, a weir within said chamber between the water supply and discharge connections thereto, meansresponsive to the accumulation of water on the discharge side of the weir for closing the water, supply connection to the weir chamber, and provisions for measuring the water flowing controlling said main water supply connec-' tion andprovisions for passing to waste surplus water accumulatmg in said heating chamber, a closed weir chamber, a water supply connection to the weir chamber leading from the heating chamber, an equalizing connection between the vapor spaces in the heater and weir chambers, a water discharge connection leading from the Weir chamber, aweir within said chamber between the water supply and dischargeonnections thereto, means responsive tothe accumulation of water on the discharge side of the weir for closing the water supply connection to the 'weir chamber, and provisions for measuring the water flowing over the Weir! 4. In a combined water heating and measn uring apparatus the combination of an open heater comprising afheating chamber, steam and water supply connections thereto,

within the heater controlling said water sup-.

ply connection, provisions regulating. the vapor pressure insaid heating chamber comprising a vent connection to theatmosphere and a back pressure regulating valve controlling the flow through said vent connection, a closed weir chamber, a water supply connection to the "eir chamber leading from the heating cham or, an equalizing connection between the .vapor spaces in the heater and weir chambers, a water discharge connection leading from the weir chamber, a

weir within said chamber bet-ween the water supplyand discharge connections thereto, means responsive to the accumulation of water on the dischargeside of the weir for closing the water supply connectioii to the weir chamber, and provisions. for measuring the waterflowing over the weir. v

GEO. H. GIBSON.

lVitnesses: I

JOHN HARVEY SHERMAN,

RoBnRT G. CLIFTON; 

